Visual studio winforms how to propagate change to code

#VISUAL STUDIO WINFORMS HOW TO PROPAGATE CHANGE TO CODE CODE#

Visible, undoMarkName ) Dim myAttributeInfo As NXObject. Open ( ) Const undoMarkName As String = 'NXJ form demo journal' Dim markId1 As Session. Work Dim lw As ListingWindow = theSession. Work ) Then 'active part required Return End If Dim workPart As Part = theSession. Private Const _attributeTitle As String = 'PROJECT' Public ReadOnly Property AttributeTitle ( ) As String Get Return _attributeTitleД®nd Get End Property Private _attributeValue As String = '' Public Property AttributeValue ( ) As String Get Return _attributeValueД®nd Set End Property Sub Main ( ) Dim theSession As Session = Session. By limiting the scope of your variables and by limiting access to those variables, you can greatly reduce the time spent debugging.

#VISUAL STUDIO WINFORMS HOW TO PROPAGATE CHANGE TO CODE CODE#

As your code projects grow larger and more complex, it will take considerably more effort on your part to track down bugs in the code. By their nature, global variables can be changed by any line of code in the project.

It is a programming 'best practice' to avoid the use of global variables where possible. We can write code that ensures the value passed into the property is usable and this code will run every time the property value is changed. Using properties rather than public variables gives us two advantages: we can more easily do data validation and it avoids the use of global variables. While this approach would work and would be convenient in a project of this size we'll use properties to manage this information. To pass information to the journal, we could use some module level public variables. Reading the value of an attribute is fairly easy the questions that remain are: how do we show the form that we've created, how do we pass information from the Main subroutine to the form, and how do we pass information from the form back to the journal? and finally, assign the entered value to the part attribute.display a form showing the attribute (if it exists) and allow the user to type in a new value.check for the existence of a particular attribute.When the journal starts, the Main subroutine will be the first to execute (as usual).

I didn't spend too much time on the layout, as evidenced below: The buttons I named btnOk and btnCancel to help keep them straight ( Button1 and Button2 were not descriptive enough for my taste). I next added a form object to my new project and added: a label, a textbox, and two buttons.

The NX code wizard asked a few questions after which it presented me some starting code based on my answers. Nothing too exciting in and of itself, but it will demonstrate how to display a user form that you have created and pass information between the form object and the journal module.ДЄfter installing VB.net express and configuring the NX code wizards, I started a new NXOpen project. It will then display a form showing the value of that attribute (if any) in a textbox if the user enters a new value and presses OK, the part attribute will be updated. The journal that we'll build will check the work part for the existence of a particular attribute. It will also be helpful to know some object oriented programming (OOP) concepts such as classes, properties, methods, etc., but we'll explore the necessary bits as we go. I'm using (and recommend) VB.net express, but there are other options out there (see the resource page for some links). If, like me, you only have one of those - and don't like using notepad, get an IDE. Speaking of which, you will need an IDE to create forms for user interaction well, technically that's untrue, our resulting journal file will be plain text - you only really need notepad, a lot of know-how, and the patience of Job to create userforms. If you don't know a radio button from a combo box, you will want to check out one of the VB books from your local library (check out some suggestions on the resource page) and spend some time noodling around in an integrated development environment (IDE). This tutorial assumes you are fairly comfortable working with forms and controls and now want to know how to use them with your journals. However, sometimes you need something customized to the task at hand it's time to create our own input form. We've looked at various graphical interface elements to interact with the user:

Visual studio winforms how to propagate change to code